Why Not Feed the Wonderful Skeleton?

In an age of peace, the school ruthlessly shuts down the Necromancy Academy. Morian, who knows nothing but necromancy, is facing the serious threat of expulsion. At this critical moment, his skeleton servant Xiaobai, who has always followed him around as a football, reveals an insatiable appetite. No matter what kind of magical creature Morian puts in front of it, Xiaobai eats every last bit. It can even return some of that energy to Morian, granting him the ability to use other elemental magic. It also keeps accumulating Devour Points, unlocking forbidden magic beyond ordinary understanding. “Look at this adorable little fellow. He's simply the best!” “If we can fully study him, necromancy will see the light of day again!” So said a professor about to lose his job.